Catastrophic sesmic events, such as a sudden collapse of open pits and underground excavations,as well as a vast surface subsidence induced by mining activities, present serious dangers to the modem infrastructure . I...Catastrophic sesmic events, such as a sudden collapse of open pits and underground excavations,as well as a vast surface subsidence induced by mining activities, present serious dangers to the modem infrastructure . In fact these "sudden" events are the result of long-term preparatory processes, which are occurring in mine pillars and ambient rock.The kinetic approach was proposed for the descripiton of the preparatory process.The process presents a stochastic accumulation of defects in rock caused by a long-term redistribution of stress-strain in an ambient rock massif. Case studies related to mining activities at Zhezkazgan copper mines, Rep. kazakhstan, were coni\sidered.As was shown the seismic monitoring is a good method for forecasting catastrophic caving and surface subsidence.展开更多
俄罗斯列宾美术学院建于1757年,原名圣彼得堡艺术学院( St. PetersburgAcademy of Arts ),主要院系:油画、版画、雕塑、建筑。是俄罗斯美术教育的最高学府,培养出了许多世界知名美术家。以教授指导和个人工作室为主的教学模式,美术学院...俄罗斯列宾美术学院建于1757年,原名圣彼得堡艺术学院( St. PetersburgAcademy of Arts ),主要院系:油画、版画、雕塑、建筑。是俄罗斯美术教育的最高学府,培养出了许多世界知名美术家。以教授指导和个人工作室为主的教学模式,美术学院为学生创造好的学习环境:实践工作室,在博物馆里实际操作练习,授课,专题讲座和课堂讨论;学习临摹和绘画创作;教师辅导和学生独立创作等教学方法。展开更多
文摘Catastrophic sesmic events, such as a sudden collapse of open pits and underground excavations,as well as a vast surface subsidence induced by mining activities, present serious dangers to the modem infrastructure . In fact these "sudden" events are the result of long-term preparatory processes, which are occurring in mine pillars and ambient rock.The kinetic approach was proposed for the descripiton of the preparatory process.The process presents a stochastic accumulation of defects in rock caused by a long-term redistribution of stress-strain in an ambient rock massif. Case studies related to mining activities at Zhezkazgan copper mines, Rep. kazakhstan, were coni\sidered.As was shown the seismic monitoring is a good method for forecasting catastrophic caving and surface subsidence.
文摘俄罗斯列宾美术学院建于1757年,原名圣彼得堡艺术学院( St. PetersburgAcademy of Arts ),主要院系:油画、版画、雕塑、建筑。是俄罗斯美术教育的最高学府,培养出了许多世界知名美术家。以教授指导和个人工作室为主的教学模式,美术学院为学生创造好的学习环境:实践工作室,在博物馆里实际操作练习,授课,专题讲座和课堂讨论;学习临摹和绘画创作;教师辅导和学生独立创作等教学方法。
